Product Description:

Pin reference description:

For more product information, click https://drive.google.com/file/d/1L8ll-DeAC2SATBZn0-KbSaZsrinbnXkF/view

Test details:

Click links for more details: https://eyun.baidu.com/s/3hsiTNgg

Note:This product does not include the battery.

Package included:

2 x ESP32 OLED2 x Line4 x pin2 x 433m Spring Antenna

For example One:(1) LoRaSender#include#include#include// GPIO5  -- SX1278's SCK// GPIO19 -- SX1278's MISO// GPIO27 -- SX1278's MOSI// GPIO18 -- SX1278's CS// GPIO14 -- SX1278's RESET// GPIO26 -- SX1278's IRQ(Interrupt Request) #define SS      18#define RST     14#define DI0     26#define BAND    433E6  int counter = 0; void setup() {  pinMode(25,OUTPUT); //Send success, LED will bright 1 second    Serial.begin(115200);  while (!Serial); //If just the the basic function, must connect to a computer    SPI.begin(5,19,27,18);  LoRa.setPins(SS,RST,DI0);//  Serial.println("LoRa Sender");   if (!LoRa.begin(BAND)) {    Serial.println("Starting LoRa failed!");    while (1);  }  Serial.println("LoRa Initial OK!");} void loop() {  Serial.print("Sending packet: ");  Serial.println(counter);   // send packet  LoRa.beginPacket();  LoRa.print("hello ");  LoRa.print(counter);  LoRa.endPacket();   counter++;  digitalWrite(25, HIGH);   // turn the LED on (HIGH is the voltage level)  delay(1000);                       // wait for a second  digitalWrite(25, LOW);    // turn the LED off by making the voltage LOW  delay(1000);                       // wait for a second    delay(3000);} For example Two(2)LoRaReceiver#include#include  // GPIO5  -- SX1278's SCK// GPIO19 -- SX1278's MISO// GPIO27 -- SX1278's MOSI// GPIO18 -- SX1278's CS// GPIO14 -- SX1278's RESET// GPIO26 -- SX1278's IRQ(Interrupt Request) #define SS      18#define RST     14#define DI0     26#define BAND    433E6 void setup() {  Serial.begin(115200);  while (!Serial); //if just the the basic function, must connect to a computer  delay(1000);    Serial.println("LoRa Receiver");    SPI.begin(5,19,27,18);  LoRa.setPins(SS,RST,DI0);    if (!LoRa.begin(BAND)) {    Serial.println("Starting LoRa failed!");    while (1);  }} void loop() {  // try to parse packet  int packetSize = LoRa.parsePacket();  if (packetSize) {// received a packet    Serial.print("Received packet '");     // read packet    while (LoRa.available()) {      Serial.print((char)LoRa.read());    }     // print RSSI of packet    Serial.print("' with RSSI ");    Serial.println(LoRa.packetRssi());  }} For example three(3)LoRaReceiverCallback#include#include   // GPIO5  -- SX1278's SCK// GPIO19 -- SX1278's MISO// GPIO27 -- SX1278's MOSI// GPIO18 -- SX1278's CS// GPIO14 -- SX1278's RESET// GPIO26 -- SX1278's IRQ(Interrupt Request) #define SS      18#define RST     14#define DI0     26#define BAND    433E6 void setup() {  Serial.begin(115200);  while (!Serial); //if just the the basic function, must connect to a computer   SPI.begin(5,19,27,18);  LoRa.setPins(SS,RST,DI0);    Serial.println("LoRa Receiver Callback");   if (!LoRa.begin(BAND)) {    Serial.println("Starting LoRa failed!");    while (1); }   // register the receive callback  LoRa.onReceive(onReceive);   // put the radio into receive mode  LoRa.receive();} void loop() {  // do nothing} void onReceive(int packetSize) {  // received a packet  Serial.print("Received packet '");   // read packet  for (int i = 0; i < packetSize; i++) {    Serial.print((char)LoRa.read());  }   // print RSSI of packet  Serial.print("' with RSSI ");  Serial.println(LoRa.packetRssi());}?For example four#include  // Only needed for 1.6.5 and earlier#include "SSD1306.h" // alias for `#include "SSD1306Wire.h"`#include "images.h" //OLED pins to ESP32 0.96OLEDGPIOs via this connecthin://OLED_SDA -- GPIO4//OLED_SCL -- GPIO15//OLED_RST -- GPIO16 SSD1306  display(0x3c, 4, 15); #define DEMO_DURATION 3000typedef void (*Demo)(void);int demoMode = 0;int counter = 1; void setup() {  pinMode(16,OUTPUT);  digitalWrite(16, LOW);    // set GPIO16 low to reset OLED  delay(50);  digitalWrite(16, HIGH); // while OLED is running, must set GPIO16 in high    Serial.begin(115200);  Serial.println();  Serial.println();    // Initialising the UI will init the display too.  display.init();   display.flipScreenVertically();  display.setFont(ArialMT_Plain_10); } void drawFontFaceDemo() {    // Font Demo1    // create more fonts at http://oleddisplay.squix.ch/    display.setTextAlignment(TEXT_ALIGN_LEFT);    display.setFont(ArialMT_Plain_10);    display.drawString(0, 0, "Hello world");    display.setFont(ArialMT_Plain_16);    display.drawString(0, 10, "Hello world");    display.setFont(ArialMT_Plain_24);    display.drawString(0, 26, "Hello world");} void drawTextFlowDemo() {    display.setFont(ArialMT_Plain_10);    display.setTextAlignment(TEXT_ALIGN_LEFT);    display.drawStringMaxWidth(0, 0, 128,      "Lorem ipsumn dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore." );} void drawTextAlignmentDemo() {    // Text alignment demodisplay.setFont(ArialMT_Plain_10);   // The coordinates define the left starting point of the text  display.setTextAlignment(TEXT_ALIGN_LEFT);  display.drawString(0, 10, "Left aligned (0,10)");   // The coordinates define the center of the text  display.setTextAlignment(TEXT_ALIGN_CENTER);  display.drawString(64, 22, "Center aligned (64,22)");   // The coordinates define the right end of the text  display.setTextAlignment(TEXT_ALIGN_RIGHT);  display.drawString(128, 33, "Right aligned (128,33)");} void drawRectDemo() {      // Draw a pixel at given position    for (int i = 0; i < 10; i++) {      display.setPixel(i, i);      display.setPixel(10 - i, i);    }    display.drawRect(12, 12, 20, 20);     // Fill the rectangle    display.fillRect(14, 14, 17, 17);     // Draw a line horizontally    display.drawHorizontalLine(0, 40, 20);     // Draw a line horizontally    display.drawVerticalLine(40, 0, 20);} void drawCircleDemo() {  for (int i=1; i < 8; i++) {    display.setColor(WHITE);    display.drawCircle(32, 32, i*3);    if (i % 2 == 0) {      display.setColor(BLACK);    }    display.fillCircle(96, 32, 32 - i* 3);  }}void drawProgressBarDemo() {  int progress = (counter / 5) % 100;  // draw the progress bar  display.drawProgressBar(0, 32, 120, 10, progress);   // draw the percentage as String  display.setTextAlignment(TEXT_ALIGN_CENTER);  display.drawString(64, 15, String(progress) + "%");} void drawImageDemo() {    // see http://blog.squix.org/2015/05/esp8266-nodemcu-how-to-create-xbm.html    // on how to create xbm files    display.drawXbm(34, 14, WiFi_Logo_width, WiFi_Logo_height, WiFi_Logo_bits);} Demo demos[] = {drawFontFaceDemo, drawTextFlowDemo, drawTextAlignmentDemo, drawRectDemo, drawCircleDemo, drawProgressBarDemo, drawImageDemo};int demoLength = (sizeof(demos) / sizeof(Demo));long timeSinceLastModeSwitch = 0; void loop() {  // clear the display  display.clear();  // draw the current demo method  demos[demoMode]();   display.setTextAlignment(TEXT_ALIGN_RIGHT);  display.drawString(10, 128, String(millis()));  // write the buffer to the display  display.display();   if (millis() - timeSinceLastModeSwitch > DEMO_DURATION) {    demoMode = (demoMode + 1)  % demoLength;    timeSinceLastModeSwitch = millis();  }  counter++;  delay(10);}